Laser scanners have been widely used in our daily lives. Here are some tips on how to troubleshoot scanners, such as scanner crashes, how to troubleshoot and how to deal with them, detailed solutions and troubleshooting. Please continue to look down the scanner can not read the cause and troubleshooting
1) The function of reading such a barcode is not turned on.
2) The bar code does not conform to the specification, for example, the necessary blank area is missing, the contrast of the bar and the space is too low, and the width ratio of the bar and the empty pair is not suitable.
3) Direct sunlight, the photosensitive device enters the saturation zone.
4) The surface of the barcode is covered with a transparent material, and the degree of reflection is too high. Although the eye can see the barcode, the collector has strict reading conditions and cannot be read.
5) Hardware failure, contact your dealer for repair. On the laptop and on the computer, the scanner of the keyboard interface does not work properly, or the scanner is normal and the keyboard does not work. On the laptop, the scanner of the keyboard interface is equivalent to an external keyboard.
The keyboard interface of the laptop may change if it is connected to the keyboard:
1) The original keyboard is invalid. At this time the scanner is normal and the keyboard does not work.
2) The keyboard of the laptop is normal, and the external keyboard does not work. At this time the scanner is not working
Solution:
1) Make the external keyboard work by setting the BIOS automatically.
2) Connect the keyboard interface scanner
3) The scanner is connected to an external keyboard
4) Or use the serial scanner directly
After reading a barcode, the scanner crashes:
1) Due to the protection function of the scanner, if the read barcode data is transmitted incorrectly, it will automatically enter the protection state to prevent data loss. If the data that has not been successfully transferred is read, the scanner can be used again.
2) If this happens, please check the connection and agreement. After confirming the error, turn off the scanner, then turn it back on and you can use it again.
The scanner is dead after a normal connection
1) The power supply is not connected well.
2) The fuse is blown
3) Scanner power supply circuit failure
Other common faults for repair:
1) The indicator light is abnormal and the device cannot work.
2) There is an abnormal sound
3) No laser line
4) The scanning distance becomes very close
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